[4] On 31 May 1928, Arturo Ferrarin and Carlo Del Prete broke three world records in the S.64 by making 51 round trips between Torre Flavia (in Ladispoli) and Anzio.

[7] To this end, all structural resistances were minimised by cowlings and streamlined, a process that was aided by extensive wind tunnel testing of scale models.

[8] the aircraft featured an unusual pod-and-boom design, the empennage being carried on two open truss structures that extended aft from the wings,[9] broadly similar to the arrangement used on the earlier S.55.

[2] A relatively simplistic undercarriage, consisting of two pairs of vertical struts and a divided axle, had its wheels mounted on ball bearings and surrounded by streamlined cowlings.

[11] The powerplant, which was mounted on a set of cabane struts above the wing, was a single Fiat A.22T V-12 water-cooled piston engine that could produce up to 550 HP.

[14] The engine was supported upon a light framework while the propelling force was transmitted to the aircraft via a pair of long oblique struts.

[6] Fuel was stored across 27 tanks, composed of duralumin, that had a combined capacity of 7,000 liters (1,849 gallons) and occupied about three-quarters of the length of the wing.

[7] On 31 May 1928, Arturo Ferrarin and Carlo Del Prete broke three world records in the S.64 by making 51 round trips between Torre Flavia (in Ladispoli) and Anzio.

[3][15] With the record attempt successfully concluded, an announcement was made that this was to be a proving exercise for a Rome–New York City transatlantic flight.

[9][3] A Brazilian mail plane conveyed Ferrarin and Del Prete first to Natal and then to Rio de Janeiro, where in both cities they were given a heroes' welcome.

[15] The festivities in Rio de Janeiro continued for weeks, but came to an end when Ferrarin and Del Prete crashed during a demonstration flight in a S.62 on 11 August.

[3] During 1930, a second, improved S.64, designated the S.64bis, set out to reconquer the duration and closed-circuit distance records that been broken since Ferrarin and Del Prete's flight.

Between 30 May and 2 June, Umberto Maddalena and Fausto Cecconi flew from Montecelio in a closed circuit and covered 8,188 km (5,088 mi) in 67 hours and 14 minutes, establishing new distance and duration records.